Hexamail Server POP3 request buffer overflow

hexamailserver-pop-bo (36369)

High Risk

Description:

Hexamail Server is vulnerable to a buffer overflow. By sending a specially-crafted POP3 request, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause a denial of service.

*CVSS:

Base Score:	7.5
Access Vector:	Network
Access Complexity:	Low
Authentication:	None
Confidentiality Impact:	Partial
Integrity Impact:	Partial
Availability Impact:	Partial
Temporal Score:	6.4
Exploitability:	Proof-of-Concept
Remediation Level:	Unavailable
Report Confidence:	Uncorroborated

Consequences:

Gain Access

Remedy:

Upgrade to the latest version of Hexamail Server (3.0.1.004 or later), available from the Hexamail Server Web site. See References.

References:

• Hexamail Server Web site: Hexamail Server - High-performance email server - Index.
• BID-25496: Hexamail POP3 Server Remote Buffer Overflow Vulnerability
• CVE-2007-4646: Buffer overflow in the pop3 service in Hexamail Server 3.0.0.001 Lite allows remote attackers to cause a denial of service (daemon crash) and probably execute arbitrary code via a long USER command.
• SA26666: Hexamail Server "USER" Buffer Overflow Vulnerability
• SECTRACK ID: 1018637: Hexamail Server Buffer Overflow in POP3 USER Command May Let Remote Users Execute Arbitrary Code
• VUPEN/ADV-2007-3044: Hexamail Server USER Command Processing Buffer Overflow Vulnerability

Platforms Affected:

• Hexamail Hexamail Server 3.0.0.001

Reported:

Aug 30, 2007

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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